2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/6376We discuss some open problems in the understanding of the Early Solar System abundances of short-lived radioactive isotopes, and the important clarification expected on this matter by precise measurements of the average galactic abundances of 26Al and 60Fe, through their gamma-ray lines.7 pages, 1 tab. 1 fig. In ''Science with the New Generation of High Energy Gamma-ray Experiments'' Edited by S. Ciprini, A. De Angelis, P. Lubrano and O. Mansutti. August 2003, Udine: Forum Publ., p. 63 (Proc. of a Workshop held in Perugia, Italy, May 21-22, 2003)Astrophysicstext